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| Mirrors > Home > MPE Home > Th. List > dmv | Structured version Visualization version GIF version | ||
| Description: The domain of the universe is the universe. (Contributed by NM, 8-Aug-2003.) |
| Ref | Expression |
|---|---|
| dmv | ⊢ dom V = V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssv 3958 | . 2 ⊢ dom V ⊆ V | |
| 2 | dmi 5909 | . . 3 ⊢ dom I = V | |
| 3 | ssv 3958 | . . . 4 ⊢ I ⊆ V | |
| 4 | dmss 5890 | . . . 4 ⊢ ( I ⊆ V → dom I ⊆ dom V) | |
| 5 | 3, 4 | ax-mp 5 | . . 3 ⊢ dom I ⊆ dom V |
| 6 | 2, 5 | eqsstrri 3981 | . 2 ⊢ V ⊆ dom V |
| 7 | 1, 6 | eqssi 3950 | 1 ⊢ dom V = V |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 Vcvv 3453 ⊆ wss 3902 I cid 5553 dom cdm 5659 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2734 ax-sep 5255 ax-pr 5402 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2741 df-cleq 2754 df-clel 2837 df-ral 3079 df-rex 3089 df-rab 3415 df-v 3455 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4283 df-if 4486 df-sn 4588 df-pr 4590 df-op 4594 df-br 5108 df-opab 5172 df-id 5554 df-xp 5665 df-rel 5666 df-dm 5669 |
| This theorem is used by: nowisdomv 30955 |
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